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PSYCHOMETRIC PROPERTIES OF THE STRENGTHS AND DIFFICULTIES QUESTIONNAIRE (SDQ) PARENT VERSION IN A TRANSYLVANIAN MINORITY GROUP. CONFIRMATORY FACTOR ANALYSIS
Abstract
Objectives: The main goal of the current study was to analyze the structural validity of the parent version of the Strengths and Difficulties Questionnaire (SDQ). The instrument was used for a general screening to identify children with behavioral, social, emotional problems and ADHD symptoms, in a Hungarian minority population from Transylvania. Methods: A sample of 102 parents completed the SDQ questionnaire for elementary school children, mean age M(SD)=7.55(1.54), 57.3% female, 42.7% male, being a Transylvanian minority group. Based on findings of previous studies, several distinct models of the SDQs factor structure were tested with Confirmatory Factor Analysis (CFA). Results: Although, indices of fit were low across all models, a five-factor, higher order solution, originally intended for the SDQ provided the best representation of the instruments structure. High internal reliability estimates were found for each subscale, indicated by Cronbach alphas ranging from ?= .73 to .93. Significant gender differences were found, as determined by Chi-square, indicating that parents reported a higher frequency of hyperactivity/inattention symptoms and total problems for male participants. In addition, prevalence of ADHD symptoms (children allocated to the group of highly likely to have problems) was extremely high: 24.5% (N=25) male and 5.9% (N=6) for female participants. Conclusion: Measurement and implications of the results are discussed.
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